AD7303:  +2.7 V to +5.5 V, Serial Input, Dual Voltage Output 8-Bit DAC

The AD7303 is a dual, 8-bit voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. This device uses ...More

AD7303:  +2.7 V to +5.5 V, Serial Input, Dual Voltage Output 8-Bit DAC

Product Description

The AD7303 is a dual, 8-bit voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. This device uses a versatile 3-wire serial interface that operates at clock rates up to 30 MHz, and is compatible with QSPI, SPI, microwire and digital signal processor interface standards. The serial input register is sixteen bits wide; 8 bits act as data bits for the DACs, and the remaining eight bits make up a control register.

The on-chip control register is used to address the relevant DAC, to power down the complete device or an individual DAC, to select internal or external reference and to provide a synchronous loading facility for simultaneous update of the DAC outputs with a software LDAC function.

The low power consumption of this part makes it ideally suited to portable battery operated equipment. The power consumption is 7.5 mW max at 3 V, reducing to less than 3 µW in full power-down mode.

The AD7303 is available in an 8-pin plastic dual in-line package, 8-lead SOIC and microSOIC packages.

Features

  • Two 8-Bit DACs in One Package
  • 8-Pin DIP/SOIC and microSOIC Packages
  • +2.7 V to +5.5 V Operation
  • Internal & External Reference Capability
  • Three-Wire Serial Interface QSPI™, SPI™ and Microwire™ Compatible
  • Individual DAC Power-Down Function
  • On-Chip Output Buffer Rail-to-Rail Operation
  • On-Chip Control Register
  • Low Power Operation: 2.3 mA @3.3 V
  • Full Power-Down to 1 µA max, typically 80 nA

Diagrams

AD7303 Diagram
Functional Block Diagram for AD7303

Specifications

Resolution (Bits) 8bit
DAC Update Rate 833kSPS
DAC Settling Time 1.2µs
# DAC Outputs 2
DAC Type Voltage Out
DAC Input Format Ser,SPI
Output FSR (Uni Vdd),(Uni Vdd/2),(Uni Vref)
Ref Int/Ext Int/Ext
Supply Vnom Single(+3),Single(+3.3),Single(+5)
Pwr Diss 6.93mW
Package DIP,SOIC,SOP

AD5724R - Complete, Quad, 12-Bit, Serial Input, Unipolar/Bipolar Voltage Output DAC

AD5422 - Single Channel, 16-Bit, Serial Input, Current Source & Voltage Output DAC

AD5763 - Complete Dual, 16-Bit High Accuracy, Serial Input, ±5 V DAC

AD5412 - Single Channel, 12-Bit, Serial Input, Current Source & Voltage Output DAC

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Part# Bits Update Rate Settling Time # Outputs
AD5428 8 21.3MSPS 30ns 2
AD5429 8 2.47MSPS 30ns 2
AD7528 8 5.6MSPS 180ns 2
AD7628 8 2.9MSPS 350ns 2
AD7302 8 833KSPS 1.2µs 2
AD9709 8 125MSPS 35ns 2
AD7303 8 833KSPS 1.2µs 2
AD5424 8 20.4MSPS 30ns 1
AD5425 8 2.47MSPS 100ns 1
AD5426 8 2.47MSPS 50ns 1
AD5450 8 2.7MSPS 100ns 1
Pricing, Packaging & Availability

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Model
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Status
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  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

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